Roll-polishing attachment for rolling-mills.



No. 7l6,565. Patented Dec. 23, I902.

C. MARKWORT &. A. E. JONES.

UNTTED STATES PATENT OFFICE.

CHARLES MARKWORT AND ALBERT E. JONES, OF ELLWOOD CITY,

' PENNSYLVANIA.

ROLL-POLISHING ATTACHMENT FOR ROLLING-MILLS.

SJPECIFICATION forming part of Letters Patent No. 716,565, dated December 23, 1902.

Application filedFehruary 13, 1902. Serial No. 93,901. (No model.)

To all whom, it may concern.-

.Be it known that we, CHARLES MARKWORT and ALBERT E. JONES, citizens of the United tates, residing at Ellwood City,'in the county of Lawrence and State of Pennsylvania, have invented new and useful Improvements in Roll Polishing Attachments for Rolling- Mills, of which the following is a specifica tion.

Our invention relates to improvements in roll-polishing attachments for rolling-mills; and it consists ina certain peculiar construction designed more especially for polishing hot mill-rolls, the said construction being advantageous in that itis adapted to yieldingly press the blocks of emery or other abrasive material employed against the rolls at such points that they do not interfere with the operation of the mill and are not in the way of the attendant, known as the catcher, and also in that the blocks of abrasive material may be removed and replaced by new blocks without entailing the stoppage of the mill.

Other advantageous features of the invention will be fully understood from the following description and claim when taken in conjunction with the accompanying drawings, in which Figure 1 is a front elevation of a rollingmill equipped with ourimprovements. Fig.

'2 is an enlarged transverse section 'of the same with the housing partly broken away. Fig. 3 is a perspective View of the holder of the block. of abrasive material which acts against the upper roll, and Fig. 4 is a per spective view of the holder of the abrasive block which acts against the lower roll.

In the said drawings similar letters of reference designate corresponding parts in all of the several views, referring to which- A A are the housings of a rolling-mill,which are provided in their inner sides with ways or grooves a. 13 O are superposed rolls journaled and secured in said housings in the ordinary or any approved manner, and D D are upright bars arranged in the ways or grooves a of the housings. These bars D are provided adjacent to their upper ends with inwardly-directed lateral pins 1) and are connected together by a rod 0, disposed adjacent to their lower ends and arranged parallel to the rolls, as shown in Fig. 2.

E is polishing-block, which is dovetail in cross section and composed of emery, flagstone, or other abrasive material, and F is a similar block. The upper block is designed to bear against the upper roll 0 and is carried by a holder G. This holder G is bail-shaped and formed of spring-steel,andit has notches d in its armse to engage the pins 1) on bars D, and hooksfat the ends of said arms, and also has a clip g on its cross-bar h. The said clip is of dovetail form in cross-section, and hence it will be seen that while the polishing-block E may be readily shoved endwise into it and as readily withdrawn when desired there is no liability of the said block being casually displaced by the roll 0. The lower block F is designed to bear against the lower roll B and is carried by the clip 1' of a holder H, which holder comprises, in addition to the clip, a lever H, which is curved, as shown, to bear on the rod 0 and has a vertically-disposed aperture is at its outer end.

I I are springs which are connected at one end to the hooksfon the arms of the upper holder G and at their lower ends to bolts Z, bearing in the bed of the mill, and J is a bolt which extends through an aperture m in the bed of the mill and through the aperture 7c of holder H and is provided below the former with a head a and above the latter with a nut 19. By adjusting the bolts Z, connected to the springs I, and the nutp on the bolt J it is obvious that the pressure of the polishing-blocks against the rolls B C may be readily regulated.

In the practice of our invention it will be observed that the polishing-blocks bear against the rolls below the horizontal centers thereof and are arranged at the catchers side of the mill, but not in the way of that attendant; also, that the improvements do not interfere with the operation of the mill and do not entail stoppage of the same when it is necessary to replace the worn polishingblocks with new blocks. This latter is due to the fact that the polishing-blocks may be moved endwise into and out of the clips on the holders G H without the necessity of adjusting the holders. It will also be observed that the use of Water to keep the polishing-blocks cool is unnecessary, and, further, that it is not necessary to remove the improvements from the mill when it is not desired to polish the rolls. In this latter event the polishingblocks may be rendered idle by simply loosening the bolts Z and turning the nutp upon bolt J, when by reason of the block-holders being fulcrumed on the pins 1) and rod 0, respectively, the blocks will drop out of engagement with the rolls.

We have entered into a detailed description of the construction and relative arrangement of parts embraced in the present and preferred embodiment of our invention in order to impart a full, clear, and exact understanding of the same. We do not desire, however, to be understood as confining ourselves to such specific construction and relative arrangement of parts, as such changes or modifications may be made in practice as fairly fall within the scope of our claim.

Having described our invention, what we the inner ends of the arms, and provided with a clip, a polishing-block removably arranged in the clip and against the roll, bolts adj ustably secured in the vertical apertures in the frame-bed, and coiled springs interposed between and connecting the outer ends of the holder-arms and the said bolts.

In testimony whereof we have hereunto set our hands in presence of two subscribing witnesses.

CHARLES MARKWORT. ALBERT E. JONES. Witnesses:

PAUL O. MARKWORT, J. W. ZEIGLEB. 

